function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function log() {
	if (readCookie('authenticated') == 'true') {
		document.location = '?logoff';
	} else {
		document.location = '?login';
	}
}
function toggleFont() {
	if (document.getElementById("contentCSS").href.match(/large_content\.css/gi)) {
		document.getElementById("contentCSS").href = '/css/content.css';
		document.cookie = 'large=0; path=/';
	} else {
		document.getElementById("contentCSS").href = '/css/large_content.css';
		document.cookie = 'large=1; path=/';
	}
}